Creating block with neither previousStatement nor nextStatement results in incorrectly displayed block icon.

I’m creating a starting block that has neither a previousStatement nor a nextStatement, since all blocks are to be placed as an input.

init: function() {
      this.jsonInit({
        "id": "[ID]",
        "message0": "%1 %2",
        "args0": [
          {
            "type": "input_statement",
            "name": "SUBSTACK"
          },
          {
            "type": "field_image",
            "src": Blockly.mainWorkspace.options.pathToMedia + "icons/turtle/snow.svg",
            "width": 40,
            "height": 40,
            "flip_rtl": false
          }
        ],
        "inputsInline": true,
        "category": Blockly.Categories.turtle,
        "colour": Blockly.Colours.control.primary,
        "colourSecondary": Blockly.Colours.control.secondary,
        "colourTertiary": Blockly.Colours.control.tertiary
      });
    }

It looks something like this: Notice that the icon isn’t correctly placed on the block.

If I add a line “previousStatement”:null, to the json, then the block looks like this: Notice that the icon is correctly placed on the block.

[PullJosh]

Will extension blocks be supported in the horizontal layout? If so, this seems like a necessary feature.

[mrjacobbloom]

@PullJosh But why would you want a hat-cap block?

If I’m being honest, I hadn’t really gotten that far in my thinking. 😛

SCRATCH 3 WEB-BLOX